Tall or multi-story chimneys need more than a short brush, and this kit's nylon rod reaches up to 39 feet (12 meters) to clear soot and creosote from a square or rectangular flue in one pass from the fireplace. The rod flexes past 90 degrees to navigate bends without binding, and the rectangular aluminum alloy brush head with durable nylon bristles scrubs the walls thoroughly while resisting rust. A plastic swivel connector keeps your hands off the spinning rod during bottom-up cleaning, cutting the risk of catching a sleeve, and the spring-button locking system joins each rod section securely no matter which way you twist. At 5.95 pounds (2.7 kg) it's still light enough for one person to run top to bottom, and it arrives with replacement bristle heads and goggles so a full chimney sweep doesn't require separate purchases.